V4L/DVB (5585): SN9C1xx driver updates

* Default color improvements to the OV7660
@ Fix sn9c102_write_reg()
@ Fix sn9c102_i2c_try_raw_read()
@ Fix MI-0343
+ Add support for pair MI0360+SN9C120
+ Add more USB ids
Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

Documentation/video4linux/sn9c102.txt

@@ -355,6 +355,9 @@ devices assembling the SN9C1xx PC camera controllers:
 
 Vendor ID  Product ID
 ---------  ----------
+0x0458     0x7025
+0x045e     0x00f5
+0x045e     0x00f7
 0x0471     0x0327
 0x0471     0x0328
 0x0c45     0x6001
@@ -432,7 +435,7 @@ Image sensor / SN9C1xx bridge      | SN9C10[12]  SN9C103  SN9C105  SN9C120
 HV7131D    Hynix Semiconductor     | Yes         No       No       No
 HV7131R    Hynix Semiconductor     | No          Yes      Yes      Yes
 MI-0343    Micron Technology       | Yes         No       No       No
-MI-0360    Micron Technology       | No          Yes      No       No
+MI-0360    Micron Technology       | No          Yes      Yes      Yes
 OV7630     OmniVision Technologies | Yes         Yes      No       No
 OV7660     OmniVision Technologies | No          No       Yes      Yes
 PAS106B    PixArt Imaging          | Yes         No       No       No
@@ -478,13 +481,12 @@ scaling factor is restored to 1.
 This driver supports two different video formats: the first one is the "8-bit
 Sequential Bayer" format and can be used to obtain uncompressed video data
 from the device through the current I/O method, while the second one provides
-"raw" compressed video data (without frame headers not related to the
-compressed data). The compression quality may vary from 0 to 1 and can be
-selected or queried thanks to the VIDIOC_S_JPEGCOMP and VIDIOC_G_JPEGCOMP V4L2
-ioctl's. For maximum flexibility, both the default active video format and the
-default compression quality depend on how the image sensor being used is
-initialized (as described in the documentation of the API for the image sensors
-supplied by this driver).
+either "raw" compressed video data (without frame headers not related to the
+compressed data) or standard JPEG (with frame headers). The compression quality
+may vary from 0 to 1 and can be selected or queried thanks to the
+VIDIOC_S_JPEGCOMP and VIDIOC_G_JPEGCOMP V4L2 ioctl's. For maximum flexibility,
+both the default active video format and the default compression quality
+depend on how the image sensor being used is initialized.
 
 
 11. Video frame formats [1]

drivers/media/video/sn9c102/sn9c102.h

@@ -141,7 +141,7 @@ sn9c102_match_id(struct sn9c102_device* cam, const struct usb_device_id *id)
 
 void
 sn9c102_attach_sensor(struct sn9c102_device* cam,
-		      struct sn9c102_sensor* sensor)
+		      const struct sn9c102_sensor* sensor)
 {
 	memcpy(&cam->sensor, sensor, sizeof(struct sn9c102_sensor));
 }

drivers/media/video/sn9c102/sn9c102_core.c

@@ -48,8 +48,8 @@
 #define SN9C102_MODULE_AUTHOR   "(C) 2004-2007 Luca Risolia"
 #define SN9C102_AUTHOR_EMAIL    "<luca.risolia@studio.unibo.it>"
 #define SN9C102_MODULE_LICENSE  "GPL"
-#define SN9C102_MODULE_VERSION  "1:1.39"
-#define SN9C102_MODULE_VERSION_CODE  KERNEL_VERSION(1, 1, 39)
+#define SN9C102_MODULE_VERSION  "1:1.44"
+#define SN9C102_MODULE_VERSION_CODE  KERNEL_VERSION(1, 1, 44)
 
 /*****************************************************************************/
 
@@ -209,38 +209,41 @@ static void sn9c102_queue_unusedframes(struct sn9c102_device* cam)
 }
 
 /*****************************************************************************/
+
 /*
- * Write a sequence of count value/register pairs.  Returns -1 after the
- * first failed write, or 0 for no errors.
- */
+   Write a sequence of count value/register pairs. Returns -1 after the first
+   failed write, or 0 for no errors.
+*/
 int sn9c102_write_regs(struct sn9c102_device* cam, const u8 valreg[][2],
 		       int count)
 {
 	struct usb_device* udev = cam->usbdev;
-	u8* value = cam->control_buffer;  /* Needed for DMA'able memory */
+	u8* buff = cam->control_buffer;
 	int i, res;
 
 	for (i = 0; i < count; i++) {
 		u8 index = valreg[i][1];
 
 		/*
-		 * index is a u8, so it must be <256 and can't be out of range.
-		 * If we put in a check anyway, gcc annoys us with a warning
-		 * that our check is useless.  People get all uppity when they
-		 * see warnings in the kernel compile.
-		 */
-
-		*value = valreg[i][0];
-		res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
-				      0x08, 0x41, index, 0,
-				      value, 1, SN9C102_CTRL_TIMEOUT);
+		   index is a u8, so it must be <256 and can't be out of range.
+		   If we put in a check anyway, gcc annoys us with a warning
+		   hat our check is useless. People get all uppity when they
+		   see warnings in the kernel compile.
+		*/
+
+		*buff = valreg[i][0];
+
+		res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08,
+				      0x41, index, 0, buff, 1,
+				      SN9C102_CTRL_TIMEOUT);
+
 		if (res < 0) {
 			DBG(3, "Failed to write a register (value 0x%02X, "
-			       "index 0x%02X, error %d)", *value, index, res);
+			       "index 0x%02X, error %d)", *buff, index, res);
 			return -1;
 		}
 
-		cam->reg[index] = *value;
+		cam->reg[index] = *buff;
 	}
 
 	return 0;
@@ -272,8 +275,8 @@ int sn9c102_write_reg(struct sn9c102_device* cam, u8 value, u16 index)
 }
 
 
-/* NOTE: reading some registers always returns 0 */
-static int sn9c102_read_reg(struct sn9c102_device* cam, u16 index)
+/* NOTE: with the SN9C10[123] reading some registers always returns 0 */
+int sn9c102_read_reg(struct sn9c102_device* cam, u16 index)
 {
 	struct usb_device* udev = cam->usbdev;
 	u8* buff = cam->control_buffer;
@@ -299,7 +302,8 @@ int sn9c102_pread_reg(struct sn9c102_device* cam, u16 index)
 
 
 static int
-sn9c102_i2c_wait(struct sn9c102_device* cam, struct sn9c102_sensor* sensor)
+sn9c102_i2c_wait(struct sn9c102_device* cam,
+		 const struct sn9c102_sensor* sensor)
 {
 	int i, r;
 
@@ -320,7 +324,7 @@ sn9c102_i2c_wait(struct sn9c102_device* cam, struct sn9c102_sensor* sensor)
 
 static int
 sn9c102_i2c_detect_read_error(struct sn9c102_device* cam,
-			      struct sn9c102_sensor* sensor)
+			      const struct sn9c102_sensor* sensor)
 {
 	int r , err = 0;
 
@@ -342,7 +346,7 @@ sn9c102_i2c_detect_read_error(struct sn9c102_device* cam,
 
 static int
 sn9c102_i2c_detect_write_error(struct sn9c102_device* cam,
-			       struct sn9c102_sensor* sensor)
+			       const struct sn9c102_sensor* sensor)
 {
 	int r;
 	r = sn9c102_read_reg(cam, 0x08);
@@ -352,12 +356,12 @@ sn9c102_i2c_detect_write_error(struct sn9c102_device* cam,
 
 int
 sn9c102_i2c_try_raw_read(struct sn9c102_device* cam,
-			 struct sn9c102_sensor* sensor, u8 data0, u8 data1,
-			 u8 n, u8 buffer[])
+			 const struct sn9c102_sensor* sensor, u8 data0,
+			 u8 data1, u8 n, u8 buffer[])
 {
 	struct usb_device* udev = cam->usbdev;
 	u8* data = cam->control_buffer;
-	int err = 0, res;
+	int i = 0, err = 0, res;
 
 	/* Write cycle */
 	data[0] = ((sensor->interface == SN9C102_I2C_2WIRES) ? 0x80 : 0) |
@@ -402,7 +406,8 @@ sn9c102_i2c_try_raw_read(struct sn9c102_device* cam,
 	}
 
 	if (buffer)
-		memcpy(buffer, data, sizeof(buffer));
+		for (i = 0; i < n && i < 5; i++)
+			buffer[n-i-1] = data[4-i];
 
 	return (int)data[4];
 }
@@ -410,7 +415,7 @@ sn9c102_i2c_try_raw_read(struct sn9c102_device* cam,
 
 int
 sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
-			  struct sn9c102_sensor* sensor, u8 n, u8 data0,
+			  const struct sn9c102_sensor* sensor, u8 n, u8 data0,
 			  u8 data1, u8 data2, u8 data3, u8 data4, u8 data5)
 {
 	struct usb_device* udev = cam->usbdev;
@@ -449,7 +454,7 @@ sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
 
 int
 sn9c102_i2c_try_read(struct sn9c102_device* cam,
-		     struct sn9c102_sensor* sensor, u8 address)
+		     const struct sn9c102_sensor* sensor, u8 address)
 {
 	return sn9c102_i2c_try_raw_read(cam, sensor, sensor->i2c_slave_id,
 					address, 1, NULL);
@@ -458,7 +463,7 @@ sn9c102_i2c_try_read(struct sn9c102_device* cam,
 
 int
 sn9c102_i2c_try_write(struct sn9c102_device* cam,
-		      struct sn9c102_sensor* sensor, u8 address, u8 value)
+		      const struct sn9c102_sensor* sensor, u8 address, u8 value)
 {
 	return sn9c102_i2c_try_raw_write(cam, sensor, 3,
 					 sensor->i2c_slave_id, address,
@@ -657,16 +662,6 @@ sn9c102_write_jpegheader(struct sn9c102_device* cam, struct sn9c102_frame_t* f)
 }
 
 
-static void
-sn9c102_write_eoimarker(struct sn9c102_device* cam, struct sn9c102_frame_t* f)
-{
-	static const u8 eoi_marker[2] = {0xff, 0xd9};
-
-	memcpy(f->bufmem + f->buf.bytesused, eoi_marker, sizeof(eoi_marker));
-	f->buf.bytesused += sizeof(eoi_marker);
-}
-
-
 static void sn9c102_urb_complete(struct urb *urb)
 {
 	struct sn9c102_device* cam = urb->context;
@@ -3181,14 +3176,14 @@ static int sn9c102_ioctl(struct inode* inode, struct file* filp,
 
 static const struct file_operations sn9c102_fops = {
 	.owner = THIS_MODULE,
-	.open =    sn9c102_open,
+	.open = sn9c102_open,
 	.release = sn9c102_release,
-	.ioctl =   sn9c102_ioctl,
+	.ioctl = sn9c102_ioctl,
 	.compat_ioctl = v4l_compat_ioctl32,
-	.read =    sn9c102_read,
-	.poll =    sn9c102_poll,
-	.mmap =    sn9c102_mmap,
-	.llseek =  no_llseek,
+	.read = sn9c102_read,
+	.poll = sn9c102_poll,
+	.mmap = sn9c102_mmap,
+	.llseek = no_llseek,
 };
 
 /*****************************************************************************/
@@ -3251,7 +3246,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
 		break;
 	}
 
-	for  (i = 0; sn9c102_sensor_table[i]; i++) {
+	for  (i = 0; i < ARRAY_SIZE(sn9c102_sensor_table); i++) {
 		err = sn9c102_sensor_table[i](cam);
 		if (!err)
 			break;
@@ -3262,7 +3257,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
 		DBG(3, "Support for %s maintained by %s",
 		    cam->sensor.name, cam->sensor.maintainer);
 	} else {
-		DBG(1, "No supported image sensor detected");
+		DBG(1, "No supported image sensor detected for this bridge");
 		err = -ENODEV;
 		goto fail;
 	}

drivers/media/video/sn9c102/sn9c102_devtable.h

@@ -86,6 +86,8 @@ static const struct usb_device_id sn9c102_id_table[] = {
 	{ SN9C102_USB_DEVICE(0x0c45, 0x60bc, BRIDGE_SN9C103), },
 	{ SN9C102_USB_DEVICE(0x0c45, 0x60be, BRIDGE_SN9C103), },
 	/* SN9C105 */
+	{ SN9C102_USB_DEVICE(0x045e, 0x00f5, BRIDGE_SN9C105), },
+	{ SN9C102_USB_DEVICE(0x045e, 0x00f7, BRIDGE_SN9C105), },
 	{ SN9C102_USB_DEVICE(0x0471, 0x0327, BRIDGE_SN9C105), },
 	{ SN9C102_USB_DEVICE(0x0471, 0x0328, BRIDGE_SN9C105), },
 	{ SN9C102_USB_DEVICE(0x0c45, 0x60c0, BRIDGE_SN9C105), },
@@ -100,6 +102,7 @@ static const struct usb_device_id sn9c102_id_table[] = {
 	{ SN9C102_USB_DEVICE(0x0c45, 0x60fc, BRIDGE_SN9C105), },
 	{ SN9C102_USB_DEVICE(0x0c45, 0x60fe, BRIDGE_SN9C105), },
 	/* SN9C120 */
+	{ SN9C102_USB_DEVICE(0x0458, 0x7025, BRIDGE_SN9C120), },
 	{ SN9C102_USB_DEVICE(0x0c45, 0x6102, BRIDGE_SN9C120), },
 	{ SN9C102_USB_DEVICE(0x0c45, 0x6108, BRIDGE_SN9C120), },
 	{ SN9C102_USB_DEVICE(0x0c45, 0x610f, BRIDGE_SN9C120), },
@@ -148,7 +151,6 @@ static int (*sn9c102_sensor_table[])(struct sn9c102_device*) = {
 	&sn9c102_probe_tas5110c1b, /* detection based on USB pid/vid */
 	&sn9c102_probe_tas5110d, /* detection based on USB pid/vid */
 	&sn9c102_probe_tas5130d1b, /* detection based on USB pid/vid */
-	NULL,
 };
 
 #endif /* _SN9C102_DEVTABLE_H_ */

drivers/media/video/sn9c102/sn9c102_hv7131d.c

@@ -144,7 +144,7 @@ static int hv7131d_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor hv7131d = {
+static const struct sn9c102_sensor hv7131d = {
 	.name = "HV7131D",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
@@ -248,12 +248,10 @@ int sn9c102_probe_hv7131d(struct sn9c102_device* cam)
 
 	err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
 				       {0x28, 0x17});
-	if (err)
-		return -EIO;
 
 	r0 = sn9c102_i2c_try_read(cam, &hv7131d, 0x00);
 	r1 = sn9c102_i2c_try_read(cam, &hv7131d, 0x01);
-	if (r0 < 0 || r1 < 0)
+	if (err || r0 < 0 || r1 < 0)
 		return -EIO;
 
 	if (r0 != 0x00 || r1 != 0x04)

drivers/media/video/sn9c102/sn9c102_hv7131r.c

@@ -44,7 +44,6 @@ static int hv7131r_init(struct sn9c102_device* cam)
 					       {0xb0, 0x2b}, {0xc0, 0x2c},
 					       {0xd0, 0x2d}, {0xe0, 0x2e},
 					       {0xf0, 0x2f}, {0xff, 0x30});
-
 		break;
 	case BRIDGE_SN9C105:
 	case BRIDGE_SN9C120:
@@ -254,7 +253,7 @@ static int hv7131r_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor hv7131r = {
+static const struct sn9c102_sensor hv7131r = {
 	.name = "HV7131R",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C103 | BRIDGE_SN9C105 | BRIDGE_SN9C120,
@@ -350,11 +349,8 @@ int sn9c102_probe_hv7131r(struct sn9c102_device* cam)
 				       {0x34, 0x01}, {0x20, 0x17},
 				       {0x34, 0x01}, {0x46, 0x01});
 
-	if (err)
-		return -EIO;
-
 	devid = sn9c102_i2c_try_read(cam, &hv7131r, 0x00);
-	if (devid < 0)
+	if (err || devid < 0)
 		return -EIO;
 
 	if (devid != 0x02)

drivers/media/video/sn9c102/sn9c102_mi0343.c

@@ -55,45 +55,45 @@ static int mi0343_get_ctrl(struct sn9c102_device* cam,
 			   struct v4l2_control* ctrl)
 {
 	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
-	u8 data[5+1];
+	u8 data[2];
 
 	switch (ctrl->id) {
 	case V4L2_CID_EXPOSURE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[2];
+		ctrl->value = data[0];
 		return 0;
 	case V4L2_CID_GAIN:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35, 2,
+					     data) < 0)
 			return -EIO;
 		break;
 	case V4L2_CID_HFLIP:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3] & 0x20 ? 1 : 0;
+		ctrl->value = data[1] & 0x20 ? 1 : 0;
 		return 0;
 	case V4L2_CID_VFLIP:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3] & 0x80 ? 1 : 0;
+		ctrl->value = data[1] & 0x80 ? 1 : 0;
 		return 0;
 	case V4L2_CID_RED_BALANCE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2d,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2d, 2,
+					     data) < 0)
 			return -EIO;
 		break;
 	case V4L2_CID_BLUE_BALANCE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2c,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2c, 2,
+					     data) < 0)
 			return -EIO;
 		break;
 	case SN9C102_V4L2_CID_GREEN_BALANCE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2e,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2e, 2,
+					     data) < 0)
 			return -EIO;
 		break;
 	default:
@@ -105,7 +105,7 @@ static int mi0343_get_ctrl(struct sn9c102_device* cam,
 	case V4L2_CID_RED_BALANCE:
 	case V4L2_CID_BLUE_BALANCE:
 	case SN9C102_V4L2_CID_GREEN_BALANCE:
-		ctrl->value = data[3] | (data[2] << 8);
+		ctrl->value = data[1] | (data[0] << 8);
 		if (ctrl->value >= 0x10 && ctrl->value <= 0x3f)
 			ctrl->value -= 0x10;
 		else if (ctrl->value >= 0x60 && ctrl->value <= 0x7f)
@@ -223,7 +223,7 @@ static int mi0343_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor mi0343 = {
+static const struct sn9c102_sensor mi0343 = {
 	.name = "MI-0343",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
@@ -332,20 +332,17 @@ static struct sn9c102_sensor mi0343 = {
 
 int sn9c102_probe_mi0343(struct sn9c102_device* cam)
 {
-	u8 data[5+1];
-	int err = 0;
-
-	err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
-				       {0x28, 0x17});
+	u8 data[2];
 
-	if (err)
+	if (sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
+				     {0x28, 0x17}))
 		return -EIO;
 
 	if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id, 0x00,
 				     2, data) < 0)
 		return -EIO;
 
-	if (data[4] != 0x32 || data[3] != 0xe3)
+	if (data[1] != 0x42 || data[0] != 0xe3)
 		return -ENODEV;
 
 	sn9c102_attach_sensor(cam, &mi0343);

drivers/media/video/sn9c102/sn9c102_mi0360.c

@@ -27,20 +27,105 @@ static int mi0360_init(struct sn9c102_device* cam)
 	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 	int err = 0;
 
-	err = sn9c102_write_const_regs(cam, {0x00, 0x10}, {0x00, 0x11},
-				       {0x0a, 0x14}, {0x40, 0x01},
-				       {0x20, 0x17}, {0x07, 0x18},
-				       {0xa0, 0x19}, {0x02, 0x1c},
-				       {0x03, 0x1d}, {0x0f, 0x1e},
-				       {0x0c, 0x1f}, {0x00, 0x20},
-				       {0x10, 0x21}, {0x20, 0x22},
-				       {0x30, 0x23}, {0x40, 0x24},
-				       {0x50, 0x25}, {0x60, 0x26},
-				       {0x70, 0x27}, {0x80, 0x28},
-				       {0x90, 0x29}, {0xa0, 0x2a},
-				       {0xb0, 0x2b}, {0xc0, 0x2c},
-				       {0xd0, 0x2d}, {0xe0, 0x2e},
-				       {0xf0, 0x2f}, {0xff, 0x30});
+	switch (sn9c102_get_bridge(cam)) {
+	case BRIDGE_SN9C103:
+		err = sn9c102_write_const_regs(cam, {0x00, 0x10}, {0x00, 0x11},
+					       {0x0a, 0x14}, {0x40, 0x01},
+					       {0x20, 0x17}, {0x07, 0x18},
+					       {0xa0, 0x19}, {0x02, 0x1c},
+					       {0x03, 0x1d}, {0x0f, 0x1e},
+					       {0x0c, 0x1f}, {0x00, 0x20},
+					       {0x10, 0x21}, {0x20, 0x22},
+					       {0x30, 0x23}, {0x40, 0x24},
+					       {0x50, 0x25}, {0x60, 0x26},
+					       {0x70, 0x27}, {0x80, 0x28},
+					       {0x90, 0x29}, {0xa0, 0x2a},
+					       {0xb0, 0x2b}, {0xc0, 0x2c},
+					       {0xd0, 0x2d}, {0xe0, 0x2e},
+					       {0xf0, 0x2f}, {0xff, 0x30});
+		break;
+	case BRIDGE_SN9C105:
+	case BRIDGE_SN9C120:
+		err = sn9c102_write_const_regs(cam, {0x44, 0x01}, {0x40, 0x02},
+					       {0x00, 0x03}, {0x1a, 0x04},
+					       {0x50, 0x05}, {0x20, 0x06},
+					       {0x10, 0x07}, {0x03, 0x10},
+					       {0x08, 0x14}, {0xa2, 0x17},
+					       {0x47, 0x18}, {0x00, 0x19},
+					       {0x1d, 0x1a}, {0x10, 0x1b},
+					       {0x02, 0x1c}, {0x03, 0x1d},
+					       {0x0f, 0x1e}, {0x0c, 0x1f},
+					       {0x00, 0x20}, {0x29, 0x21},
+					       {0x40, 0x22}, {0x54, 0x23},
+					       {0x66, 0x24}, {0x76, 0x25},
+					       {0x85, 0x26}, {0x94, 0x27},
+					       {0xa1, 0x28}, {0xae, 0x29},
+					       {0xbb, 0x2a}, {0xc7, 0x2b},
+					       {0xd3, 0x2c}, {0xde, 0x2d},
+					       {0xea, 0x2e}, {0xf4, 0x2f},
+					       {0xff, 0x30}, {0x00, 0x3F},
+					       {0xC7, 0x40}, {0x01, 0x41},
+					       {0x44, 0x42}, {0x00, 0x43},
+					       {0x44, 0x44}, {0x00, 0x45},
+					       {0x44, 0x46}, {0x00, 0x47},
+					       {0xC7, 0x48}, {0x01, 0x49},
+					       {0xC7, 0x4A}, {0x01, 0x4B},
+					       {0xC7, 0x4C}, {0x01, 0x4D},
+					       {0x44, 0x4E}, {0x00, 0x4F},
+					       {0x44, 0x50}, {0x00, 0x51},
+					       {0x44, 0x52}, {0x00, 0x53},
+					       {0xC7, 0x54}, {0x01, 0x55},
+					       {0xC7, 0x56}, {0x01, 0x57},
+					       {0xC7, 0x58}, {0x01, 0x59},
+					       {0x44, 0x5A}, {0x00, 0x5B},
+					       {0x44, 0x5C}, {0x00, 0x5D},
+					       {0x44, 0x5E}, {0x00, 0x5F},
+					       {0xC7, 0x60}, {0x01, 0x61},
+					       {0xC7, 0x62}, {0x01, 0x63},
+					       {0xC7, 0x64}, {0x01, 0x65},
+					       {0x44, 0x66}, {0x00, 0x67},
+					       {0x44, 0x68}, {0x00, 0x69},
+					       {0x44, 0x6A}, {0x00, 0x6B},
+					       {0xC7, 0x6C}, {0x01, 0x6D},
+					       {0xC7, 0x6E}, {0x01, 0x6F},
+					       {0xC7, 0x70}, {0x01, 0x71},
+					       {0x44, 0x72}, {0x00, 0x73},
+					       {0x44, 0x74}, {0x00, 0x75},
+					       {0x44, 0x76}, {0x00, 0x77},
+					       {0xC7, 0x78}, {0x01, 0x79},
+					       {0xC7, 0x7A}, {0x01, 0x7B},
+					       {0xC7, 0x7C}, {0x01, 0x7D},
+					       {0x44, 0x7E}, {0x00, 0x7F},
+					       {0x14, 0x84}, {0x00, 0x85},
+					       {0x27, 0x86}, {0x00, 0x87},
+					       {0x07, 0x88}, {0x00, 0x89},
+					       {0xEC, 0x8A}, {0x0f, 0x8B},
+					       {0xD8, 0x8C}, {0x0f, 0x8D},
+					       {0x3D, 0x8E}, {0x00, 0x8F},
+					       {0x3D, 0x90}, {0x00, 0x91},
+					       {0xCD, 0x92}, {0x0f, 0x93},
+					       {0xf7, 0x94}, {0x0f, 0x95},
+					       {0x0C, 0x96}, {0x00, 0x97},
+					       {0x00, 0x98}, {0x66, 0x99},
+					       {0x05, 0x9A}, {0x00, 0x9B},
+					       {0x04, 0x9C}, {0x00, 0x9D},
+					       {0x08, 0x9E}, {0x00, 0x9F},
+					       {0x2D, 0xC0}, {0x2D, 0xC1},
+					       {0x3A, 0xC2}, {0x05, 0xC3},
+					       {0x04, 0xC4}, {0x3F, 0xC5},
+					       {0x00, 0xC6}, {0x00, 0xC7},
+					       {0x50, 0xC8}, {0x3C, 0xC9},
+					       {0x28, 0xCA}, {0xD8, 0xCB},
+					       {0x14, 0xCC}, {0xEC, 0xCD},
+					       {0x32, 0xCE}, {0xDD, 0xCF},
+					       {0x32, 0xD0}, {0xDD, 0xD1},
+					       {0x6A, 0xD2}, {0x50, 0xD3},
+					       {0x00, 0xD4}, {0x00, 0xD5},
+					       {0x00, 0xD6});
+		break;
+	default:
+		break;
+	}
 
 	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
 					 0x00, 0x01, 0, 0);
@@ -65,50 +150,50 @@ static int mi0360_get_ctrl(struct sn9c102_device* cam,
 			   struct v4l2_control* ctrl)
 {
 	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
-	u8 data[5+1];
+	u8 data[2];
 
 	switch (ctrl->id) {
 	case V4L2_CID_EXPOSURE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[2];
+		ctrl->value = data[0];
 		return 0;
 	case V4L2_CID_GAIN:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3];
+		ctrl->value = data[1];
 		return 0;
 	case V4L2_CID_RED_BALANCE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2c,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2c, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3];
+		ctrl->value = data[1];
 		return 0;
 	case V4L2_CID_BLUE_BALANCE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2d,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2d, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3];
+		ctrl->value = data[1];
 		return 0;
 	case SN9C102_V4L2_CID_GREEN_BALANCE:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2e,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2e, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3];
+		ctrl->value = data[1];
 		return 0;
 	case V4L2_CID_HFLIP:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3] & 0x20 ? 1 : 0;
+		ctrl->value = data[1] & 0x20 ? 1 : 0;
 		return 0;
 	case V4L2_CID_VFLIP:
-		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20,
-					     2+1, data) < 0)
+		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
+					     data) < 0)
 			return -EIO;
-		ctrl->value = data[3] & 0x80 ? 1 : 0;
+		ctrl->value = data[1] & 0x80 ? 1 : 0;
 		return 0;
 	default:
 		return -EINVAL;
@@ -178,8 +263,19 @@ static int mi0360_set_crop(struct sn9c102_device* cam,
 {
 	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 	int err = 0;
-	u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0,
-	   v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
+	u8 h_start = 0, v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
+
+	switch (sn9c102_get_bridge(cam)) {
+	case BRIDGE_SN9C103:
+		h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0;
+		break;
+	case BRIDGE_SN9C105:
+	case BRIDGE_SN9C120:
+		h_start = (u8)(rect->left - s->cropcap.bounds.left) + 1;
+		break;
+	default:
+		break;
+	}
 
 	err += sn9c102_write_reg(cam, h_start, 0x12);
 	err += sn9c102_write_reg(cam, v_start, 0x13);
@@ -194,24 +290,30 @@ static int mi0360_set_pix_format(struct sn9c102_device* cam,
 	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 	int err = 0;
 
-	if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) {
-		err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
-						 0x0a, 0x00, 0x02, 0, 0);
-		err += sn9c102_write_reg(cam, 0x20, 0x19);
-	} else {
+	if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
 		err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 						 0x0a, 0x00, 0x05, 0, 0);
 		err += sn9c102_write_reg(cam, 0x60, 0x19);
+		if (sn9c102_get_bridge(cam) == BRIDGE_SN9C105 ||
+		    sn9c102_get_bridge(cam) == BRIDGE_SN9C120)
+			err += sn9c102_write_reg(cam, 0xa6, 0x17);
+	} else {
+		err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
+						 0x0a, 0x00, 0x02, 0, 0);
+		err += sn9c102_write_reg(cam, 0x20, 0x19);
+		if (sn9c102_get_bridge(cam) == BRIDGE_SN9C105 ||
+		    sn9c102_get_bridge(cam) == BRIDGE_SN9C120)
+			err += sn9c102_write_reg(cam, 0xa2, 0x17);
 	}
 
 	return err;
 }
 
 
-static struct sn9c102_sensor mi0360 = {
+static const struct sn9c102_sensor mi0360 = {
 	.name = "MI-0360",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
-	.supported_bridge = BRIDGE_SN9C103,
+	.supported_bridge = BRIDGE_SN9C103 | BRIDGE_SN9C105 | BRIDGE_SN9C120,
 	.frequency = SN9C102_I2C_100KHZ,
 	.interface = SN9C102_I2C_2WIRES,
 	.i2c_slave_id = 0x5d,
@@ -317,19 +419,31 @@ static struct sn9c102_sensor mi0360 = {
 
 int sn9c102_probe_mi0360(struct sn9c102_device* cam)
 {
-	u8 data[5+1];
-	int err;
 
-	err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
-				       {0x28, 0x17});
-	if (err)
-		return -EIO;
+	u8 data[2];
+
+	switch (sn9c102_get_bridge(cam)) {
+	case BRIDGE_SN9C103:
+		if (sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
+					     {0x28, 0x17}))
+			return -EIO;
+		break;
+	case BRIDGE_SN9C105:
+	case BRIDGE_SN9C120:
+		if (sn9c102_write_const_regs(cam, {0x01, 0xf1}, {0x00, 0xf1},
+					     {0x01, 0x01}, {0x00, 0x01},
+					     {0x28, 0x17}))
+			return -EIO;
+		break;
+	default:
+		break;
+	}
 
 	if (sn9c102_i2c_try_raw_read(cam, &mi0360, mi0360.i2c_slave_id, 0x00,
-				     2+1, data) < 0)
+				     2, data) < 0)
 		return -EIO;
 
-	if (data[2] != 0x82 || data[3] != 0x43)
+	if (data[0] != 0x82 || data[1] != 0x43)
 		return -ENODEV;
 
 	sn9c102_attach_sensor(cam, &mi0360);

drivers/media/video/sn9c102/sn9c102_ov7630.c

@@ -29,9 +29,8 @@ static int ov7630_init(struct sn9c102_device* cam)
 	switch (sn9c102_get_bridge(cam)) {
 	case BRIDGE_SN9C101:
 	case BRIDGE_SN9C102:
-		err = sn9c102_write_const_regs(cam, {0x00, 0x14},
-					       {0x60, 0x17}, {0x0f, 0x18},
-					       {0x50, 0x19});
+		err = sn9c102_write_const_regs(cam, {0x00, 0x14}, {0x60, 0x17},
+					       {0x0f, 0x18}, {0x50, 0x19});
 
 		err += sn9c102_i2c_write(cam, 0x12, 0x8d);
 		err += sn9c102_i2c_write(cam, 0x12, 0x0d);
@@ -61,7 +60,6 @@ static int ov7630_init(struct sn9c102_device* cam)
 		err += sn9c102_i2c_write(cam, 0x71, 0x00);
 		err += sn9c102_i2c_write(cam, 0x74, 0x21);
 		err += sn9c102_i2c_write(cam, 0x7d, 0xf7);
-
 		break;
 	case BRIDGE_SN9C103:
 		err = sn9c102_write_const_regs(cam, {0x00, 0x02}, {0x00, 0x03},
@@ -253,7 +251,7 @@ static int ov7630_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor ov7630 = {
+static const struct sn9c102_sensor ov7630 = {
 	.name = "OV7630",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102 | BRIDGE_SN9C103,
@@ -408,19 +406,16 @@ int sn9c102_probe_ov7630(struct sn9c102_device* cam)
 	switch (sn9c102_get_bridge(cam)) {
 	case BRIDGE_SN9C101:
 	case BRIDGE_SN9C102:
-		err = sn9c102_write_const_regs(cam, {0x01, 0x01},
-					       {0x00, 0x01}, {0x28, 0x17});
-
+		err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
+					       {0x28, 0x17});
 		break;
 	case BRIDGE_SN9C103: /* do _not_ change anything! */
-		err = sn9c102_write_const_regs(cam, {0x09, 0x01},
-					       {0x42, 0x01}, {0x28, 0x17},
-					       {0x44, 0x02});
+		err = sn9c102_write_const_regs(cam, {0x09, 0x01}, {0x42, 0x01},
+					       {0x28, 0x17}, {0x44, 0x02});
 		pid = sn9c102_i2c_try_read(cam, &ov7630, 0x0a);
-		if (err || pid < 0) { /* try a different initialization */
-			err = sn9c102_write_reg(cam, 0x01, 0x01);
-			err += sn9c102_write_reg(cam, 0x00, 0x01);
-		}
+		if (err || pid < 0) /* try a different initialization */
+			err += sn9c102_write_const_regs(cam, {0x01, 0x01},
+							{0x00, 0x01});
 		break;
 	default:
 		break;

drivers/media/video/sn9c102/sn9c102_ov7660.c

@@ -104,8 +104,8 @@ static int ov7660_init(struct sn9c102_device* cam)
 	err += sn9c102_i2c_write(cam, 0x12, 0x80);
 	err += sn9c102_i2c_write(cam, 0x11, 0x09);
 	err += sn9c102_i2c_write(cam, 0x00, 0x0A);
-	err += sn9c102_i2c_write(cam, 0x01, 0x78);
-	err += sn9c102_i2c_write(cam, 0x02, 0x90);
+	err += sn9c102_i2c_write(cam, 0x01, 0x80);
+	err += sn9c102_i2c_write(cam, 0x02, 0x80);
 	err += sn9c102_i2c_write(cam, 0x03, 0x00);
 	err += sn9c102_i2c_write(cam, 0x04, 0x00);
 	err += sn9c102_i2c_write(cam, 0x05, 0x08);
@@ -122,7 +122,7 @@ static int ov7660_init(struct sn9c102_device* cam)
 	err += sn9c102_i2c_write(cam, 0x10, 0x20);
 	err += sn9c102_i2c_write(cam, 0x11, 0x03);
 	err += sn9c102_i2c_write(cam, 0x12, 0x05);
-	err += sn9c102_i2c_write(cam, 0x13, 0xF8);
+	err += sn9c102_i2c_write(cam, 0x13, 0xC7);
 	err += sn9c102_i2c_write(cam, 0x14, 0x2C);
 	err += sn9c102_i2c_write(cam, 0x15, 0x00);
 	err += sn9c102_i2c_write(cam, 0x16, 0x02);
@@ -162,7 +162,7 @@ static int ov7660_init(struct sn9c102_device* cam)
 	err += sn9c102_i2c_write(cam, 0x38, 0x02);
 	err += sn9c102_i2c_write(cam, 0x39, 0x43);
 	err += sn9c102_i2c_write(cam, 0x3A, 0x00);
-	err += sn9c102_i2c_write(cam, 0x3B, 0x02);
+	err += sn9c102_i2c_write(cam, 0x3B, 0x0A);
 	err += sn9c102_i2c_write(cam, 0x3C, 0x6C);
 	err += sn9c102_i2c_write(cam, 0x3D, 0x99);
 	err += sn9c102_i2c_write(cam, 0x3E, 0x0E);
@@ -281,25 +281,34 @@ static int ov7660_get_ctrl(struct sn9c102_device* cam,
 			return -EIO;
 		break;
 	case V4L2_CID_DO_WHITE_BALANCE:
-		ctrl->value = sn9c102_pread_reg(cam, 0x02);
+		if ((ctrl->value = sn9c102_read_reg(cam, 0x02)) < 0)
+			return -EIO;
 		ctrl->value = (ctrl->value & 0x04) ? 1 : 0;
 		break;
 	case V4L2_CID_RED_BALANCE:
-		ctrl->value = sn9c102_pread_reg(cam, 0x05);
+		if ((ctrl->value = sn9c102_read_reg(cam, 0x05)) < 0)
+			return -EIO;
 		ctrl->value &= 0x7f;
 		break;
 	case V4L2_CID_BLUE_BALANCE:
-		ctrl->value = sn9c102_pread_reg(cam, 0x06);
+		if ((ctrl->value = sn9c102_read_reg(cam, 0x06)) < 0)
+			return -EIO;
 		ctrl->value &= 0x7f;
 		break;
 	case SN9C102_V4L2_CID_GREEN_BALANCE:
-		ctrl->value = sn9c102_pread_reg(cam, 0x07);
+		if ((ctrl->value = sn9c102_read_reg(cam, 0x07)) < 0)
+			return -EIO;
 		ctrl->value &= 0x7f;
 		break;
+	case SN9C102_V4L2_CID_BAND_FILTER:
+		if ((ctrl->value = sn9c102_i2c_read(cam, 0x3b)) < 0)
+			return -EIO;
+		ctrl->value &= 0x08;
+		break;
 	case V4L2_CID_GAIN:
 		if ((ctrl->value = sn9c102_i2c_read(cam, 0x00)) < 0)
 			return -EIO;
-		ctrl->value &= 0x7f;
+		ctrl->value &= 0x1f;
 		break;
 	case V4L2_CID_AUTOGAIN:
 		if ((ctrl->value = sn9c102_i2c_read(cam, 0x13)) < 0)
@@ -335,12 +344,15 @@ static int ov7660_set_ctrl(struct sn9c102_device* cam,
 	case SN9C102_V4L2_CID_GREEN_BALANCE:
 		err += sn9c102_write_reg(cam, ctrl->value, 0x07);
 		break;
+	case SN9C102_V4L2_CID_BAND_FILTER:
+		err += sn9c102_i2c_write(cam, ctrl->value << 3, 0x3b);
+		break;
 	case V4L2_CID_GAIN:
-		err += sn9c102_i2c_write(cam, 0x00, ctrl->value);
+		err += sn9c102_i2c_write(cam, 0x00, 0x60 + ctrl->value);
 		break;
 	case V4L2_CID_AUTOGAIN:
-		err += sn9c102_i2c_write(cam, 0x13, 0xf0 | ctrl->value |
-						    (ctrl->value << 1));
+		err += sn9c102_i2c_write(cam, 0x13, 0xc0 |
+						    (ctrl->value * 0x07));
 		break;
 	default:
 		return -EINVAL;
@@ -386,7 +398,7 @@ static int ov7660_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor ov7660 = {
+static const struct sn9c102_sensor ov7660 = {
 	.name = "OV7660",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C105 | BRIDGE_SN9C120,
@@ -401,9 +413,9 @@ static struct sn9c102_sensor ov7660 = {
 			.type = V4L2_CTRL_TYPE_INTEGER,
 			.name = "global gain",
 			.minimum = 0x00,
-			.maximum = 0x7f,
+			.maximum = 0x1f,
 			.step = 0x01,
-			.default_value = 0x0a,
+			.default_value = 0x09,
 			.flags = 0,
 		},
 		{
@@ -413,7 +425,7 @@ static struct sn9c102_sensor ov7660 = {
 			.minimum = 0x00,
 			.maximum = 0xff,
 			.step = 0x01,
-			.default_value = 0x50,
+			.default_value = 0x27,
 			.flags = 0,
 		},
 		{
@@ -433,7 +445,7 @@ static struct sn9c102_sensor ov7660 = {
 			.minimum = 0x00,
 			.maximum = 0x7f,
 			.step = 0x01,
-			.default_value = 0x1f,
+			.default_value = 0x14,
 			.flags = 0,
 		},
 		{
@@ -443,7 +455,7 @@ static struct sn9c102_sensor ov7660 = {
 			.minimum = 0x00,
 			.maximum = 0x7f,
 			.step = 0x01,
-			.default_value = 0x1e,
+			.default_value = 0x14,
 			.flags = 0,
 		},
 		{
@@ -453,7 +465,7 @@ static struct sn9c102_sensor ov7660 = {
 			.minimum = 0x00,
 			.maximum = 0x01,
 			.step = 0x01,
-			.default_value = 0x00,
+			.default_value = 0x01,
 			.flags = 0,
 		},
 		{
@@ -463,7 +475,17 @@ static struct sn9c102_sensor ov7660 = {
 			.minimum = 0x00,
 			.maximum = 0x7f,
 			.step = 0x01,
-			.default_value = 0x20,
+			.default_value = 0x14,
+			.flags = 0,
+		},
+		{
+			.id = SN9C102_V4L2_CID_BAND_FILTER,
+			.type = V4L2_CTRL_TYPE_BOOLEAN,
+			.name = "band filter",
+			.minimum = 0x00,
+			.maximum = 0x01,
+			.step = 0x01,
+			.default_value = 0x00,
 			.flags = 0,
 		},
 	},
@@ -508,6 +530,7 @@ int sn9c102_probe_ov7660(struct sn9c102_device* cam)
 		return -EIO;
 	if (pid != 0x76 || ver != 0x60)
 		return -ENODEV;
+
 	sn9c102_attach_sensor(cam, &ov7660);
 
 	return 0;

drivers/media/video/sn9c102/sn9c102_pas106b.c

@@ -163,7 +163,7 @@ static int pas106b_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor pas106b = {
+static const struct sn9c102_sensor pas106b = {
 	.name = "PAS106B",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
@@ -273,23 +273,21 @@ static struct sn9c102_sensor pas106b = {
 
 int sn9c102_probe_pas106b(struct sn9c102_device* cam)
 {
-	int r0 = 0, r1 = 0, err;
+	int r0 = 0, r1 = 0;
 	unsigned int pid = 0;
 
 	/*
 	   Minimal initialization to enable the I2C communication
 	   NOTE: do NOT change the values!
 	*/
-	err = sn9c102_write_const_regs(cam,
-				       {0x01, 0x01}, /* sensor power down */
-				       {0x00, 0x01}, /* sensor power on */
-				       {0x28, 0x17});/* sensor clock 24 MHz */
-	if (err)
+	if (sn9c102_write_const_regs(cam,
+				     {0x01, 0x01}, /* sensor power down */
+				     {0x00, 0x01}, /* sensor power on */
+				    {0x28, 0x17})) /* sensor clock at 24 MHz */
 		return -EIO;
 
 	r0 = sn9c102_i2c_try_read(cam, &pas106b, 0x00);
 	r1 = sn9c102_i2c_try_read(cam, &pas106b, 0x01);
-
 	if (r0 < 0 || r1 < 0)
 		return -EIO;
 

drivers/media/video/sn9c102/sn9c102_pas202bcb.c

@@ -35,29 +35,28 @@ static int pas202bcb_init(struct sn9c102_device* cam)
 	switch (sn9c102_get_bridge(cam)) {
 	case BRIDGE_SN9C101:
 	case BRIDGE_SN9C102:
-		err = sn9c102_write_const_regs(cam, {0x00, 0x10},
-					       {0x00, 0x11}, {0x00, 0x14},
-					       {0x20, 0x17}, {0x30, 0x19},
-					       {0x09, 0x18});
+		err = sn9c102_write_const_regs(cam, {0x00, 0x10}, {0x00, 0x11},
+					       {0x00, 0x14}, {0x20, 0x17},
+					       {0x30, 0x19}, {0x09, 0x18});
 		break;
 	case BRIDGE_SN9C103:
-		err = sn9c102_write_const_regs(cam, {0x00, 0x02},
-					       {0x00, 0x03}, {0x1a, 0x04},
-					       {0x20, 0x05}, {0x20, 0x06},
-					       {0x20, 0x07}, {0x00, 0x10},
-					       {0x00, 0x11}, {0x00, 0x14},
-					       {0x20, 0x17}, {0x30, 0x19},
-					       {0x09, 0x18}, {0x02, 0x1c},
-					       {0x03, 0x1d}, {0x0f, 0x1e},
-					       {0x0c, 0x1f}, {0x00, 0x20},
-					       {0x10, 0x21}, {0x20, 0x22},
-					       {0x30, 0x23}, {0x40, 0x24},
-					       {0x50, 0x25}, {0x60, 0x26},
-					       {0x70, 0x27}, {0x80, 0x28},
-					       {0x90, 0x29}, {0xa0, 0x2a},
-					       {0xb0, 0x2b}, {0xc0, 0x2c},
-					       {0xd0, 0x2d}, {0xe0, 0x2e},
-					       {0xf0, 0x2f}, {0xff, 0x30});
+		err = sn9c102_write_const_regs(cam, {0x00, 0x02}, {0x00, 0x03},
+					       {0x1a, 0x04}, {0x20, 0x05},
+					       {0x20, 0x06}, {0x20, 0x07},
+					       {0x00, 0x10}, {0x00, 0x11},
+					       {0x00, 0x14}, {0x20, 0x17},
+					       {0x30, 0x19}, {0x09, 0x18},
+					       {0x02, 0x1c}, {0x03, 0x1d},
+					       {0x0f, 0x1e}, {0x0c, 0x1f},
+					       {0x00, 0x20}, {0x10, 0x21},
+					       {0x20, 0x22}, {0x30, 0x23},
+					       {0x40, 0x24}, {0x50, 0x25},
+					       {0x60, 0x26}, {0x70, 0x27},
+					       {0x80, 0x28}, {0x90, 0x29},
+					       {0xa0, 0x2a}, {0xb0, 0x2b},
+					       {0xc0, 0x2c}, {0xd0, 0x2d},
+					       {0xe0, 0x2e}, {0xf0, 0x2f},
+					       {0xff, 0x30});
 		break;
 	default:
 		break;
@@ -197,7 +196,7 @@ static int pas202bcb_set_crop(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor pas202bcb = {
+static const struct sn9c102_sensor pas202bcb = {
 	.name = "PAS202BCB",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102 | BRIDGE_SN9C103,
@@ -313,9 +312,8 @@ int sn9c102_probe_pas202bcb(struct sn9c102_device* cam)
 					       {0x28, 0x17});/* clock 24 MHz */
 		break;
 	case BRIDGE_SN9C103: /* do _not_ change anything! */
-		err = sn9c102_write_const_regs(cam, {0x09, 0x01},
-					       {0x44, 0x01}, {0x44, 0x02},
-					       {0x29, 0x17});
+		err = sn9c102_write_const_regs(cam, {0x09, 0x01}, {0x44, 0x01},
+					       {0x44, 0x02}, {0x29, 0x17});
 		break;
 	default:
 		break;

drivers/media/video/sn9c102/sn9c102_sensor.h

@@ -22,7 +22,7 @@
 #define _SN9C102_SENSOR_H_
 
 #include <linux/usb.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <linux/device.h>
 #include <linux/stddef.h>
 #include <linux/errno.h>
@@ -74,7 +74,7 @@ sn9c102_match_id(struct sn9c102_device* cam, const struct usb_device_id *id);
 /* Attach a probed sensor to the camera. */
 extern void
 sn9c102_attach_sensor(struct sn9c102_device* cam,
-		      struct sn9c102_sensor* sensor);
+		      const struct sn9c102_sensor* sensor);
 
 /*
    Read/write routines: they always return -1 on error, 0 or the read value
@@ -85,10 +85,11 @@ sn9c102_attach_sensor(struct sn9c102_device* cam,
 */
 
 /* The "try" I2C I/O versions are used when probing the sensor */
-extern int sn9c102_i2c_try_write(struct sn9c102_device*,struct sn9c102_sensor*,
-				 u8 address, u8 value);
-extern int sn9c102_i2c_try_read(struct sn9c102_device*,struct sn9c102_sensor*,
-				u8 address);
+extern int sn9c102_i2c_try_write(struct sn9c102_device*,
+				 const struct sn9c102_sensor*, u8 address,
+				 u8 value);
+extern int sn9c102_i2c_try_read(struct sn9c102_device*,
+				const struct sn9c102_sensor*, u8 address);
 
 /*
    These must be used if and only if the sensor doesn't implement the standard
@@ -102,29 +103,31 @@ extern int sn9c102_i2c_try_read(struct sn9c102_device*,struct sn9c102_sensor*,
    byte.
 */
 extern int sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
-				     struct sn9c102_sensor* sensor, u8 n,
+				     const struct sn9c102_sensor* sensor, u8 n,
 				     u8 data0, u8 data1, u8 data2, u8 data3,
 				     u8 data4, u8 data5);
 extern int sn9c102_i2c_try_raw_read(struct sn9c102_device* cam,
-				    struct sn9c102_sensor* sensor, u8 data0,
-				    u8 data1, u8 n, u8 buffer[]);
+				    const struct sn9c102_sensor* sensor,
+				    u8 data0, u8 data1, u8 n, u8 buffer[]);
 
 /* To be used after the sensor struct has been attached to the camera struct */
 extern int sn9c102_i2c_write(struct sn9c102_device*, u8 address, u8 value);
 extern int sn9c102_i2c_read(struct sn9c102_device*, u8 address);
 
 /* I/O on registers in the bridge. Could be used by the sensor methods too */
+extern int sn9c102_read_reg(struct sn9c102_device*, u16 index);
 extern int sn9c102_pread_reg(struct sn9c102_device*, u16 index);
 extern int sn9c102_write_reg(struct sn9c102_device*, u8 value, u16 index);
 extern int sn9c102_write_regs(struct sn9c102_device*, const u8 valreg[][2],
 			      int count);
 /*
- * Write multiple registers with constant values.  For example:
- * sn9c102_write_const_regs(cam, {0x00, 0x14}, {0x60, 0x17}, {0x0f, 0x18});
- */
-#define sn9c102_write_const_regs(device, data...) \
-	({ const static u8 _data[][2] = {data}; \
-	sn9c102_write_regs(device, _data, ARRAY_SIZE(_data)); })
+   Write multiple registers with constant values. For example:
+   sn9c102_write_const_regs(cam, {0x00, 0x14}, {0x60, 0x17}, {0x0f, 0x18});
+   Register adresses must be < 256.
+*/
+#define sn9c102_write_const_regs(sn9c102_device, data...)                     \
+	({ const static u8 _valreg[][2] = {data};                             \
+	sn9c102_write_regs(sn9c102_device, _valreg, ARRAY_SIZE(_valreg)); })
 
 /*****************************************************************************/
 

drivers/media/video/sn9c102/sn9c102_tas5110c1b.c

@@ -88,7 +88,7 @@ static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor tas5110c1b = {
+static const struct sn9c102_sensor tas5110c1b = {
 	.name = "TAS5110C1B",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,

drivers/media/video/sn9c102/sn9c102_tas5110d.c

@@ -68,7 +68,7 @@ static int tas5110d_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor tas5110d = {
+static const struct sn9c102_sensor tas5110d = {
 	.name = "TAS5110D",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,

drivers/media/video/sn9c102/sn9c102_tas5130d1b.c

@@ -89,7 +89,7 @@ static int tas5130d1b_set_pix_format(struct sn9c102_device* cam,
 }
 
 
-static struct sn9c102_sensor tas5130d1b = {
+static const struct sn9c102_sensor tas5130d1b = {
 	.name = "TAS5130D1B",
 	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,